# Pastebin 1Xu1svZW
+ quiet zypper --gpg-auto-import-keys refresh
quiet: zypper --gpg-auto-import-keys refresh
quiet: exit status 4. Output follows:
Retrieving repository 'openSUSE-Leap-42.3-Non-Oss' metadata [.......done]
Building repository 'openSUSE-Leap-42.3-Non-Oss' cache [....done]
Retrieving repository 'openSUSE-Leap-42.3-Oss' metadata [.................................................................done]
Building repository 'openSUSE-Leap-42.3-Oss' cache [....done]
Retrieving repository 'openSUSE-Leap-42.3-Update' metadata [.................................................................................................................................
Warning: File 'repomd.xml' from repository 'openSUSE-Leap-42.3-Update' is unsigned.

    Note: Signing data enables the recipient to verify that no modifications occurred after the data
    were signed. Accepting data with no, wrong or unknown signature can lead to a corrupted system
    and in extreme cases even to a system compromise.

    Note: File 'repomd.xml' is the repositories master index file. It ensures the integrity of the
    whole repo.

    Warning: We can't verify that no one meddled with this file, so it might not be trustworthy
    anymore! You should not continue unless you know it's safe.

File 'repomd.xml' from repository 'openSUSE-Leap-42.3-Update' is unsigned, continue? [yes/no] (no): Cannot read input: bad stream or EOF.
If you run zypper without a terminal, use '--non-interactive' global
option to make zypper use default answers to prompts.
error]
Repository 'openSUSE-Leap-42.3-Update' is invalid.